Limits on the effective quark radius from inclusive ep scattering at HERA

• Verfasst von: Abramowicz, Halina [VerfasserIn]
• Verfasst von: Lisovyi, Mykhailo [VerfasserIn]
• Titel: Limits on the effective quark radius from inclusive ep scattering at HERA
• Körperschaft: ZEUS Collaboration [VerfasserIn]
• Verf.angabe: ZEUS Collaboration*
• E-Jahr: 2016
• Jahr: 12 April 2016
• Umfang: 5 S.
• Fussnoten: *ZEUS Collaboration: H. Abramowicz, M. Lisovyi [und 125 weitere Personen] ; Gesehen am 20.07.2020
• Titel Quelle: Enthalten in: Physics letters / B
• Ort Quelle: Amsterdam : North-Holland Publ., 1967
• Jahr Quelle: 2016
• Band/Heft Quelle: 757(2016), Seite 468-472
• ISSN Quelle: 1873-2445
• DOI: doi:10.1016/j.physletb.2016.04.007
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1725147718

Abstract

The high-precision HERA data allows searches up to TeV scales for beyond the Standard Model contributions to electron-quark scattering. Combined measurements of the inclusive deep inelastic cross sections in neutral and charged current ep scattering corresponding to a luminosity of around 1 fb−1 have been used in this analysis. A new approach to the beyond the Standard Model analysis of the inclusive ep data is presented; simultaneous fits of parton distribution functions together with contributions of “new physics” processes were performed. Results are presented considering a finite radius of quarks within the quark form-factor model. The resulting 95% C.L. upper limit on the effective quark radius is 0.43⋅10−16 cm.